Question

chapter 5
understand main ideas

1. which best describes the distribution of communities on a tall mountain?

a. evergreen forests exist up to the tree line and no vegetation is found above the tree line.
b. several communities might be stratified according to altitude and might end in an ice field at the top of the highest mountains.
c. as altitude increases, tall trees are replaced by shorter trees, and ultimately are replaced by grasses.
d. tundra - like communities exist at the top of the highest mountains, and deserts are found at the lower elevations.
use the diagram below to answer question 18.

1. which area receives the least amount of solar energy per unit of surface area?

a. north of 60°n and south of 60°s
b. south of 30°n and north of 30°n
c. between the tropic of cancer and the tropic of capricorn
d. north and south temperate zones

1. what is the name for large geographic areas with similar climax communities?

a. assemblages c. successions
b. communities d. biomes

1. which biome occurs in the united states and once contained huge herds of grazing herbivores?

a. boreal forest c. grassland
b. temperate forest d. savanna

1. which land biome contains the greatest species diversity?

a. tundra c. desert
b. grassland d. tropical rain forest

1. open ended describe a biome that is found in the shaded area shown above.
2. open ended in december 2004, a huge caused a large number of penguin chicks of starvation. ice shelves broke apart where the air temperature increased. the of the penguins were cut off from their source. how is this an example of a limiting factor?

think critically

1. main idea suggest why land biomes are according to their plant characteristics according to the animals that inhabit them.
2. classify a biome that is warm to hot in summer and cool or cold in the winter and that receives approximately 50 - 89 cm of precipitation annually.

section 3
vocabulary review
replace the underlined words with the correct from the study guide page.

1. a(n) area where freshwater and salt water provides habitat for a diversity of organisms.
2. the well - lit portion of the ocean is the area where all of the photosynthetic organisms live.
3. the shoreline of the ocean contains communities that are layered depending on how long they are submerged by tides.

Explanation:

1. As altitude increases on a mountain, vegetation changes in a stratified manner with different communities at different levels.
2. Areas near the poles (north of 60°N and south of 60°S) receive less solar energy per unit surface area due to the angle of sunlight.
3. Biomes are large - geographic areas with similar climax communities.
4. Grasslands in the United States once had large herds of grazing herbivores.
5. Tropical rain forests have the greatest species diversity among land biomes.

Answer:

1. B
2. A
3. D
4. C
5. D